/*
 * Base structural styles — visual design tokens will be added later.
 * Replace placeholder values in :root when branding is ready.
 */

:root {
  /* Design tokens — placeholders */
  --color-primary: #2563eb;
  --color-text: #1a1a1a;
  --color-text-muted: #666;
  --color-bg: #fff;
  --color-surface: #f5f5f5;
  --color-border: #ddd;

  --font-body: system-ui, sans-serif;
  --font-heading: system-ui, sans-serif;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  --max-width: 72rem;
  --header-height: 4rem;
  --radius: 0.25rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  inset-inline-start: var(--space-md);
  top: -100%;
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-md);
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  min-height: var(--header-height);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex: 0 1 auto;
  min-width: 0;
  max-width: min(18rem, 42%);
  overflow: visible;
}

.brand-logo {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius);
  flex-shrink: 0;
  transition: transform 0.28s ease, filter 0.28s ease;
  transform-origin: center center;
  position: relative;
  z-index: 1;
}

.brand:hover .brand-logo,
.brand:focus-within .brand-logo {
  transform: scale(1.22) translateY(-2px);
  z-index: 8;
  filter: drop-shadow(0 8px 16px rgba(15, 39, 68, 0.22));
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
  min-width: 0;
}

.brand-text strong,
.brand-text small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-text small {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
  order: 3;
}

.site-nav {
  order: 2;
  flex: 1 1 auto;
}

.brand {
  order: 1;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-sm);
  flex: 1 1 auto;
  min-width: 0;
}

.nav-list {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.nav-link {
  text-decoration: none;
  padding: 0.4rem 0.55rem;
  border-radius: var(--radius);
  white-space: nowrap;
  font-size: 0.92rem;
}

.nav-link.is-active {
  font-weight: 600;
  background: var(--color-surface);
}

.lang-switcher,
.lang-switcher {
  position: relative;
  display: flex;
  flex-shrink: 0;
  align-items: stretch;
  gap: 0.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.15rem;
}

.lang-globe-icon,
.lang-globe-icon {
  width: 1.25rem;
  height: 1.25rem;
  display: none;
}

.lang-switcher-toggle {
  display: none;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: none;
  padding: 0.3rem 0.5rem;
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 0.78rem;
  font-weight: 600;
  color: inherit;
  white-space: nowrap;
}

.lang-switcher-toggle {
  display: none;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: none;
  padding: 0.3rem 0.5rem;
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 0.78rem;
  font-weight: 600;
  color: inherit;
  white-space: nowrap;
}

.lang-switcher-caret,
.lang-switcher-caret {
  font-size: 0.7rem;
  opacity: 0.7;
  transition: transform 0.15s ease;
}

.lang-switcher.is-open .lang-switcher-caret,
.lang-switcher.is-open .lang-switcher-caret {
  transform: rotate(180deg);
}

.lang-switcher-panel,
.lang-switcher-panel {
  display: flex;
  gap: 0.15rem;
  align-items: center;
}

.lang-btn,
.lang-btn {
  background: none;
  border: none;
  padding: 0.3rem 0.45rem;
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 0.78rem;
  white-space: nowrap;
}

.lang-btn.is-active,
.lang-btn.is-active {
  background: var(--color-surface);
  font-weight: 600;
}

/* Main */
.site-main {
  flex: 1;
  padding-block: var(--space-2xl);
}

.page-header {
  margin-bottom: var(--space-xl);
}

.page-header h1 {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-heading);
}

.page-header p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 40rem;
}

/* Hero */
.hero {
  padding-block: var(--space-2xl);
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.hero h1 {
  margin: 0 0 var(--space-md);
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.hero p {
  margin: 0 auto var(--space-lg);
  max-width: 36rem;
  color: var(--color-text-muted);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

/* Why choose us + featured services: 2 rows × 3 cards on desktop */
.features-grid,
.services-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 720px) {
  .features-grid,
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .features-grid,
  .services-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.card h2,
.card h3 {
  margin: 0 0 var(--space-sm);
  font-family: var(--font-heading);
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.section-title {
  margin: 0 0 var(--space-lg);
  font-family: var(--font-heading);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
}

.btn:hover {
  opacity: 0.9;
}

/* Contact layout */
.contact-layout {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}

@media (min-width: 48rem) {
  .contact-layout {
    grid-template-columns: 1.2fr 1fr;
  }
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font: inherit;
}

.form-group textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-note {
  margin-top: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.info-block + .info-block {
  margin-top: var(--space-lg);
}

.info-block h2 {
  margin: 0 0 var(--space-sm);
  font-size: 1rem;
}

.info-block p {
  margin: 0;
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-lg);
  background: var(--color-surface);
  margin-top: auto;
}

.footer-inner {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-inner p {
  margin: 0;
}

.footer-note {
  margin-top: var(--space-sm) !important;
  font-size: 0.8rem;
}

@media (max-width: 56rem) {
  .header-inner { position: relative; }
  .header-tools { order: 2; margin-inline-start: 0; }
  .site-nav { order: 3; }

  .lang-switcher,
  .lang-switcher {
    padding: 0;
    border-color: var(--color-border);
  }

  .lang-switcher-toggle,
  .lang-switcher-toggle {
    display: inline-flex;
    width: 2.4rem;
    height: 2.4rem;
    justify-content: center;
    padding: 0;
  }

  .lang-globe-icon,
  .lang-globe-icon { display: block; }
  .lang-switcher-current,
  .lang-switcher-caret,
  .lang-switcher-current,
  .lang-switcher-caret { display: none; }

  .lang-switcher.is-open .lang-switcher-panel,
  .lang-switcher.is-open .lang-switcher-panel {
    display: flex;
  }

  .lang-switcher-panel,
  .lang-switcher-panel {
    display: none;
    position: absolute;
    top: calc(100% + 0.25rem);
    inset-inline-end: 0;
    min-width: 7.5rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    padding: 0.35rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    z-index: 70;
  }

  .lang-switcher.is-open .lang-switcher-panel {
    display: flex;
  }

  .lang-btn {
    display: block;
    width: 100%;
    text-align: start;
    padding: 0.45rem 0.55rem;
    font-size: 0.85rem;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    width: 2.4rem;
    height: 2.4rem;
    padding: 0;
  }

  .site-nav {
    display: none;
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    z-index: 60;
    width: 100%;
    flex: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0.15rem;
  }

  .nav-link {
    display: block;
    padding: 0.65rem 0.75rem;
    font-size: 1rem;
  }

  .brand {
    max-width: calc(100% - 7rem);
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
  }

  .site-nav .lang-switcher,
  .site-nav .lang-switcher,
  .site-nav .lang-switcher,
  .nav-list .lang-switcher {
    display: none !important;
  }
}

/* RTL adjustments */
[dir="rtl"] .brand-text,
[dir="rtl"] .nav-list {
  text-align: start;
}